Hi.
Kevin, I've done something like what you want to do using the document
function and xpaths. I agree with Andrew's suggestion about not relying
on document order to associate key/value pairs, but we have values that
can contain elements so we use something more like:
<map>
<key name="1">value of name 1</key>
<key name="7">value of name 7</key>
</map>
That's in a separate file from the xsl (say map.xml).
Then in the xsl you can use:
<xsl:variable name="map" select="document('map.xml')"/>
To get then value for 1 you can use:
<xsl:value-of select="$map//key[(_at_)name='1']/>
Andrew would your xsl:key solution apply to this? If so how?
---->Nathan
-----Original Message-----
From: andrew welch [mailto:andrew(_dot_)j(_dot_)welch(_at_)gmail(_dot_)com]
Sent: Tuesday, September 13, 2005 9:02 AM
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Keeping a map in my XSL
On 9/13/05, Kevin L. Cobb <kevin(_dot_)cobb(_at_)emergint(_dot_)com> wrote:
I want to be able to set a variable that is retreived from
my XML I am
parsing to a mapped values. For example, lets say I have an
XML map that
looks like this:
<map>
<key>12345</key><value>abcde</key>
<key>78910</key><value>lmnop</value>
</map>
My source XML has the value '12345' in a certain field. I
retreive the
field as usual in XSL and then I want to get the mapped
value of this
field. The map above is "included" in my XSL. Is there a
best way to do
this in XSL?
yes, first restructure your map as associating a key and value by
position is a bad idea, much better to use attributes:
<map>
<key name="12345" value="abcde"/>
<key name="78910" value="lmnop"/>
</map>
then define a key to return a value for a given name:
<xsl:key name="mappings" match="key" use="@name"/>
then in xslt 1.0 use:
<xsl:variable name="lookup" select="the_name_you_want_lookup"/>
<xsl:for-each select="$map">
<xsl:value-of select="key('mappings', $lookup)/@value"/>
</xsl:for-each>
in 2.0 you don't have the hassle of switching the context node because
key() can take it as the third argument:
<xsl:value-of select="key('mappings', the_name_you_want_to_lookup,
$mappings)/@value"/>
cheers
andrew
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